DERIVATIVE FINANCIAL INSTRUMENTS - Schedule of Impact of Derivative Financial Instruments (Details) £ in Millions | Mar. 31, 2024 USD ($) | Mar. 31, 2024 GBP (£) | Dec. 31, 2023 USD ($) | Dec. 31, 2023 GBP (£) |
Derivatives, Fair Value [Line Items] | | | | |
Amounts eligible to be offset under master netting agreements | $ 0 | | $ 0 | |
Prepaid expenses and other current assets | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative assets | 113,000,000 | | 90,000,000 | |
Other non- current assets | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative assets | 24,000,000 | | 21,000,000 | |
Accounts payable and accrued liabilities | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative liability | 45,000,000 | | 45,000,000 | |
Other non- current liabilities | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative liability | 131,000,000 | | 138,000,000 | |
Not Designated as Hedging Instrument | Foreign exchange derivatives | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Notional | 1,089,000,000 | | 1,058,000,000 | |
Not Designated as Hedging Instrument | Foreign exchange derivatives | Prepaid expenses and other current assets | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative assets, fair value | 25,000,000 | | 1,000,000 | |
Not Designated as Hedging Instrument | Foreign exchange derivatives | Other non- current assets | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative assets, fair value | 4,000,000 | | 1,000,000 | |
Not Designated as Hedging Instrument | Foreign exchange derivatives | Accounts payable and accrued liabilities | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative liability, fair value | 4,000,000 | | 1,000,000 | |
Not Designated as Hedging Instrument | Foreign exchange derivatives | Other non- current liabilities | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative liability, fair value | 96,000,000 | | 83,000,000 | |
Not Designated as Hedging Instrument | Interest rate swaps | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Notional | 3,250,000,000 | | 0 | |
Not Designated as Hedging Instrument | Interest rate swaps | Prepaid expenses and other current assets | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative assets, fair value | 23,000,000 | | 0 | |
Not Designated as Hedging Instrument | Interest rate swaps | Other non- current assets | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative assets, fair value | 0 | | 0 | |
Not Designated as Hedging Instrument | Interest rate swaps | Accounts payable and accrued liabilities | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative liability, fair value | 0 | | 0 | |
Not Designated as Hedging Instrument | Interest rate swaps | Other non- current liabilities | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative liability, fair value | 0 | | 0 | |
Not Designated as Hedging Instrument | Total return swaps | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Notional | 420,000,000 | | 395,000,000 | |
Not Designated as Hedging Instrument | Total return swaps | Prepaid expenses and other current assets | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative assets, fair value | 10,000,000 | | 19,000,000 | |
Not Designated as Hedging Instrument | Total return swaps | Other non- current assets | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative assets, fair value | 0 | | 0 | |
Not Designated as Hedging Instrument | Total return swaps | Accounts payable and accrued liabilities | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative liability, fair value | 0 | | 0 | |
Not Designated as Hedging Instrument | Total return swaps | Other non- current liabilities | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative liability, fair value | 0 | | 0 | |
Cash Flow Hedging | Designated as Hedging Instrument | Foreign exchange derivatives | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Notional | 1,249,000,000 | | 1,484,000,000 | |
Cash Flow Hedging | Designated as Hedging Instrument | Foreign exchange derivatives | Prepaid expenses and other current assets | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative assets, fair value | 24,000,000 | | 40,000,000 | |
Cash Flow Hedging | Designated as Hedging Instrument | Foreign exchange derivatives | Other non- current assets | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative assets, fair value | 7,000,000 | | 8,000,000 | |
Cash Flow Hedging | Designated as Hedging Instrument | Foreign exchange derivatives | Accounts payable and accrued liabilities | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative liability, fair value | 34,000,000 | | 37,000,000 | |
Cash Flow Hedging | Designated as Hedging Instrument | Foreign exchange derivatives | Other non- current liabilities | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative liability, fair value | 4,000,000 | | 8,000,000 | |
Net Investment Hedges | Designated as Hedging Instrument | Cross-currency swaps | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Notional | 1,361,000,000 | | 1,779,000,000 | |
Net Investment Hedges | Designated as Hedging Instrument | Cross-currency swaps | Sterling Notes | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Notional | 506,000,000 | £ 400 | 513,000,000 | £ 402 |
Net Investment Hedges | Designated as Hedging Instrument | Cross-currency swaps | Prepaid expenses and other current assets | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative assets, fair value | 22,000,000 | | 23,000,000 | |
Net Investment Hedges | Designated as Hedging Instrument | Cross-currency swaps | Other non- current assets | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative assets, fair value | 13,000,000 | | 12,000,000 | |
Net Investment Hedges | Designated as Hedging Instrument | Cross-currency swaps | Accounts payable and accrued liabilities | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative liability, fair value | 7,000,000 | | 7,000,000 | |
Net Investment Hedges | Designated as Hedging Instrument | Cross-currency swaps | Other non- current liabilities | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative liability, fair value | 24,000,000 | | 42,000,000 | |
Fair Value Hedges | Designated as Hedging Instrument | Interest rate swaps | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Notional | 1,500,000,000 | | 1,500,000,000 | |
Fair Value Hedges | Designated as Hedging Instrument | Interest rate swaps | Prepaid expenses and other current assets | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative assets, fair value | 9,000,000 | | 7,000,000 | |
Fair Value Hedges | Designated as Hedging Instrument | Interest rate swaps | Other non- current assets | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative assets, fair value | 0 | | 0 | |
Fair Value Hedges | Designated as Hedging Instrument | Interest rate swaps | Accounts payable and accrued liabilities | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative liability, fair value | 0 | | 0 | |
Fair Value Hedges | Designated as Hedging Instrument | Interest rate swaps | Other non- current liabilities | | | | |
Derivatives, Fair Value [Line Items] | | | | |
Derivative liability, fair value | $ 7,000,000 | | $ 5,000,000 | |